Determination of Ga, Ge, Mo, Ag, Cd, In, Sn, Sb, W, Tl and Bi in USGS Whole-Rock Reference Materials by Standard Addition ICP-MS

Richard M. Gaschnig, Roberta L. Rudnick, William F. Mcdonough

研究成果: Article査読

21 被引用数 (Scopus)

抄録

A procedure for determining a wide range of chalcophile and siderophile elements in typical crustal rocks using standard addition and ICP-SFMS (inductively coupled plasma sector field mass spectrometry) is presented. New results for Ga, Ge, Mo, Ag, Cd, In, Sn, Sb, W, Tl and Bi abundances in USGS whole-rock reference materials AGV-2, BHVO-1, BIR-1, G-2, GSP-1 and W-2 are reported using this analytical procedure. Intermediate precision of means based on multiple dissolved aliquots of each USGS reference material was 10% RSD or better for Ga, Ge, In and Sn in all, and similarly good for Ag, Cd, Sb, Tl and Bi in most reference materials. Poorer intermediate precision of Mo and W measurements in several reference materials is probably due to higher analytical blanks on these elements and powder heterogeneity due to a sulfide-related nugget effect in the specific case of Mo in GSP-1. Results for all elements fell within the range of available published data with the exception of Ag, which yielded systematically higher concentrations than found in the literature for five of the six reference materials, likely reflecting interference from unresolved polyatomic species.

本文言語English
ページ(範囲)371-379
ページ数9
ジャーナルGeostandards and Geoanalytical Research
39
3
DOI
出版ステータスPublished - 2015 9月 1
外部発表はい

ASJC Scopus subject areas

  • 地質学
  • 地球化学および岩石学

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